Need help to make Improvements / Fixes

I’m need your advice/tips to improve my template, especially I do not know what to do with overall typography and graphics.

Reviewer thoughts:

1) Overall template typography needs additional refinements and improvements before it will be ready for Theme Forest. Some aspects to consider are color, contrast and weight, visual hierarchy and alignment.
2) Your template has a good start but, as we have high standards, you will need to make some additional improvements in overall aesthetics. Some aspects to consider are spacing and graphics.

In my opinion the graphic is really great and minimalistic and the client will be able to change color or some element without the effort, but I want to read yours opinion on this.